Understanding Genetic Screening in Fertility Treatment

Genetic screening in fertility treatment is a modern advancement that improves IVF outcomes by ensuring only genetically healthy embryos are selected for transfer. This reduces miscarriage risk, genetic disease transmission, and increases the chances of a successful pregnancy.

What is Genetic Screening?

Preimplantation Genetic Testing (PGT) encompasses two main methods;

Preimplantation Genetic Screening (PGS): Screens embryos for numerical chromosomal abnormalities (aneuploidy), which increase with maternal age, leading to implantation failure or miscarriage.

Preimplantation Genetic Diagnosis (PGD): Tests embryos for specific inherited genetic conditions identified in one or both parents.

Both involve analyzing cells biopsied from embryos at the blastocyst stage (day 5–6) without harming embryo viability.

Who Should Consider Genetic Screening?

Women of advanced maternal age (35+) with higher risk of chromosomal abnormalities.

Couples with a history of recurrent miscarriages or repeated IVF failures.

Those with known genetic disorders in family history or carriers of hereditary diseases.

Severe male factor infertility cases with genetic concerns.

Genetic Screening Process Overview

IVF Cycle: Eggs are stimulated, retrieved, fertilized in the lab, and embryos cultured to the blastocyst stage.

Embryo Biopsy: A small number of cells are safely removed from the embryo’s outer layer (trophectoderm) for analysis.

Laboratory Testing: Advanced techniques such as a CGH, SNP microarray, or next-generation sequencing analyze DNA for chromosomal number and specific gene mutations.

Embryo Selection: Only embryos free of detected abnormalities are selected for uterine transfer. Remaining healthy embryos may be cryopreserved.

Embryo Transfer: The selected embryo(s) are transferred in a subsequent cycle, optimizing pregnancy chances.

Benefits of Genetic Screening

Reduces miscarriage and implantation failure rates by identifying chromosomally normal embryos.

Minimizes risk of passing serious genetic disorders to offspring.

Enables informed family planning decisions with personalized care.

Increases IVF efficiency and reduces emotional and financial burden of multiple unsuccessful cycles.

Does Genetic Screening Guarantee Pregnancy?

While it significantly improves success likelihood, genetic screening does not guarantee pregnancy. Factors like uterine environment and overall health still play critical roles. However, it offers the most accurate assessment of embryo health currently available.

Iswarya Fertility Centre’s Genetic Screening Expertise

Iswarya Fertility Centre deploys cutting-edge genetic testing technologies integrated with advanced IVF protocols. Our experienced embryologists and fertility specialists provide detailed counseling, ensuring ethical, accurate testing and best possible outcomes for our patients.